Printing-press tripping mechanism.



R. MHiHLE. q PRINTING PRESS TRIPPING MECHANISM.

APPUCATIONIFILED MAR.8,19|7.

Paented Feb. 11, 1919.`

4 SHEETS-SHEET R. IVHEHLE.

PRINHNG PRESS TRIPHNG MECHANISM.

APPLICATION FILED MAR.B,1917.

R. MIEHLE.

PRINTING PRESS TRIPPING MECHANISM.

APPLICATION FILED MAR. 8.1917.

Pzlfented Feb. 11, 19ML 4 SHEElS--SHEET 3.

Ell "u H. IIIIEHLE,

PRINTING PRESS TRIPPING IIIEGHAIIIISIVI.

APPLICATION FILED MAII. 8. I9I'7.

Patented Feb. 11. Mii,

ROBERT MIEHLE, OF CHICAGO, ILLINOIS.

PRINTING-PRESS Specification of Letters Yatent.

TRIPPING MECHANISM.

Patented Feb. 11, 1919.

Application filed March B, 1917. Serial No. 153,469.

To all whom it may concern .1 Be it known that I, Rosana* MIEHLE, citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a` certain nenT and useful Improvement in Printing-Press 'T rippin Mechanism, of which the following 1s a fu l, clear, concise, and exact descrlption.

My invention relates yto rotary printing presses and, in one of its embodiments, particularly to that class of rotary presses employing two cylinders, herein disclosed as being members of different printing couples, and tripping mechanism for each of said cylinders, at least one of the cylinders being preferably normally in impression position. I employ a coupler or control ling means for coperatively relating one of said cylinders (for example -a cylinder of a second printing couple) with its trippmg mechanism, and Vmechanism operated by another cylinder (say a cylinder of the first couple) for controlling and positioning the 'coupler with the tripping mechanism. The

mechanism which 4is employed for position ing the tripping coupler also operates While .the cylinder that controls it is in a printing cycle, the said coupler and the tripping mechanism it controls only functioning in the ensuing cycle when the first printing cylinder is out of printing position with its companion printing cylinder.

There are features of my invention which are not to be limited to normally positioning the cylinders of the couples in printing or impression position, another feature of my invention residing in the employment of three or more rinting couples,- the tripping mechanism o the third printing couple being Apositioned in the printing cycle ahead of the printing cycle in which the tripping mechanism of the second printing couple is positioned, there being desirably also automatic means whereby the trippingmechanism of the second printing couple 1s positioned in the printing cycle ahead of the printing cycle in which the tripping mechanism of the first printing couple is positioned. While I prefer to employ tripping mechanism for each of the printing cylinders of the press I do not wish to be limited to this characteristic, but where there is tripping mechanism for each printing cylinder the first cylinder of the series is desirably provided with attendant controlled means whereby the tripping mechanism of the first cylinder may function and other attendant cont-rolled means whereby the coupler pertaining to the tripping mechanism of Ithe next cylinder is prevented from functioning when the tripping mechanism of the first printing cylinder functions.

In accordance with the invention as I preferably practice it, there are thus a plurality of printing couples and the printing cylinder in each couple is a single revolution cylinder, it being these single revolution cyl'q inders that are preferably normally lin 1mpression position.

My invention also has a" further object in the conversion of the press into one in which either or both of the printing cylinders of two printing couples may be constituted the printingcy inders in offset printing combinations, each printing cylinder in suc-h a combination having means for bringing it into printing' relation with a form cylinderand an impression cylinder and for breaking such printing relation.

Another object of my invention resides in providing a delaying mechanism through which the movements of the .first couple into and ont of printing position are transmitted to control the tripping mechanism of the second couple, said delaying mechanism functioning to delay the transmission of the movements of said first couple into printing position until after the same has been so moved, whereby the tripping mechanism of the second cylinder is given more time to act without interference from the mechanism which controls it.

lVhile my invention is particularly adapted for rotary printing presses, and is shown for its preferred embodiment, hereinafter described, in connection with a rotary prints ing press it is not to be limited to that yuse alone as it will 'be obvious from the following description that it is Well adapted for A side of a sheet, as in two color printing, the

cylinders of each printing' couple beingm'n roo printing relation; Fig. 2 is a View of the press showing many of the parts illustrated. in Fig. l and other parts not illustrated in Fig 1, the printing cylinder of the first printing couple being shown in non impression position ih full lines and in impression osition in dotted lines'. the printing cylinder of the second couple being shown in in'ip'ression position; Fig. 3 is a view genorally similar to Fig. 2 with the cylinders of the first printing couple in printing relation and the cylinders of the second printing couple in non-printing relation; Fig. 4 is a` View illustrative of tripping mechanism taken on line -lot' Fig. 3; and Fig. 5 illustrates a third printing couple and a part. of the seeond printing couple shown in Figs. l, 2 and 3. Fig. :3 to be read in conjunction with either of Figs. 1, 2 and 3, being together therewith illustrative of a press having three printing couples, it being understood that the third printing couple may be related to a` :loiirth printing couple as the tirst printing couple is related to the second printing couple.

Lilie parts are indicated by similar characters et' reference throughout the different tief s The. main driving pinion shatt- 1 carries a pinion :l which ia in mesh with the main ring spur gear wheel :l which is lined ..pth respect to tlic stub shait fil. This stub shalt is journalcd iii the frame of the inacliinc to have a lined artis of rotation whereiy the gear wh tel 3. that turns with the stub s iaiit ll. has a tilted axis oi rotation. The iur gear 3 is in incl-:h with spur gea r l, lined upon shaft l5, and gives motion vto sheet. ti'anslcr cylinder lo. The cylinders 1T and 2l. in the embodiment ofthe in ventina illus tratcd but. to which embodiment the inteng tion is not to be limited. are `printingr or forni carrying cylinders which are normally in printing or impression position, tl axes of these cylinders being sub -.tantially normally iixed. ln the embodimeilt of the invention illustrated there are two printing couples each including one ot' the aforesaid cylinders, thc cylinder 1T having an impression cylinder Il. as its complement While thc cylinder 2l. has the impression cylinder Elli as its compleiiient. the shcct transfer cylinder 16 being interposed hetwccn thc impression cylu inders. In a two color press the cylinders 1T vand 2l rotate in the saine direction on which account these cylinders do not carry gears fixed thereupon that mesh with each other. said cylinders haring suitable clearance in tervening therebetween at their most ad jacent points. Suitable gearing; is employed to rotate the cylinders 1T and 2l in their similar directions and to rotate the remainingcylinders in the directions indicated.

l will describe the press ot my invention as it is adjusted and arranged to enable t to be used in performing two printing;I opera,-

tions upon the samc side ot a shcct and in different colors it desired. The axes ot printing cylinders (ll and 2l which eylin dersI rotate. in similar directions). the im presisioii cylinders 1l and Ztl. and the slicct transfer cylinder lo may be normally fixed but the printing cylinders are tripped into and out o't' printing position by means oi' any suitable tripping mechanism provided tor each printing cylinder, such as that illustrated. Each printing cylinder is normally dissociated from its tripping mechanism but is coupled therewith by a seperate nu chanism by tlic )rcss attendant who has a toot key for the first printing' cylinder ll. The tripping mechanism employed may bc oiE the general nature illustrated in my pai-- ents 689.505. dated December 1llltll.` and 1,081,420. dated December lli` lllll with uccessary changes.

The foot key A 'is normally held up by a` spring Af and is conncctef` by a hell crank A2 with a. connecting` link 5i' that. con-- nected with a rocker arm 571 that in turn ia fixed upon a rod 572, and on which rod thci'c is iixed a cam arin 58 eai'ryingg` a trip cam portion 581. rllliis mechanism constitutes thc trip positioning means of the tripping incchaiiisin of the first couple. litlicnevcr the foot key is depressed the rod 5372 ol the coilresiionding tripping mechanism is turned to turn the cani arin Tit-lio more the uppcr end et' the cani arin downwardly7 to lower the hnoli' 55) into engagement'with the tooth c5 the parts a9. il" of arin 1 and c oiistitutiug clements ot' a coupler that conne l the corri-t spending printingV cylinder with its tripping cani d. The trippingl can; d belonging to the .lirst printing cylinder is rotated by the gear ff upon which the cani is .lixcdly located. the lnear c in turn licin rotated by the pinion upon the stud y lixcd to the `traine, the pinion j' being in lixcd coiinection with the spur gear wheel /iy that is in `mesh with the pinion EF carried upon thc other end of the shaft l opposite that which carries the pinion 2 and which latter pinion meshes with gear wheel 3, this shaft; passing tl'irough the machine from sido to side.

The tripping mechanisms for both printing cylinders are of similar construction, geirerally speaking, and similar parte arc given similar characters et' reference. Tin.l gear c of the second printing cylinder tripping mechanism is driven by the intermediate gear c1 that is driven by the `tirst gear c. the intermediate gear el being` mounted to turn upon a fixed stud that. is carried by' the frame of the machine. The earn groove (/l in cam (l engages a cani roller if upon an arm 7c loose on shaft l that passes from side to side of the machine and to which shai't thc tooth c is fixed. The roller i is mouiiicd upon the stud 'i1 upon the inner cud ot' i `cylinder shaft box Z1.

w1 rich the hook 59 is mounted to swing.. Shaft Z carries two eccentrics Z1 upon each of which a sliding box member Z2 rests7 each sliding box member supporting the extension Z3 of the corresponding printing cylinder shaft box Z1, there being thus one eccentric Z1 in supporting relation to each printing The arc a Z) of the cam groove is concentric with respect to the shaft d? of the cam. The cam roller z' 'is not bodily moved while engaging this .thereto is in its normal operating position,

the centers of these eccentrics being normally positioned slightly to the left of the vertical line passing through the vcenters of the shaft Z and the shaft of the corresponding' printing cylinder. and being between this line and the stationary stop pin Q. As tooth c is in fixed relation to the eccentrics Z1 the stop pin Q holds the shaft Z from counter-cloclmise rotation to hold the corresponding printing cylinder in working position. The stop pin Q illustrated is upon one sidel of the press. There may be a similar stop pin on the other side ofthe press that is to sbe engaged by an arm xed upon the other end ofthe shaft Z and positioned similarly to the tooth c to take part in preventingrv the turning of the shaft Z and the eccentrics thereon. When the shaft Z is turned clockwise 'the eccentrics Z1, being fixed upon the shaft, are also turned clockwise so that the corresponding printing cylinder is lowered to non-printing position. This rotation of the shaft LZ and the eccentrics Z1 cannot occur until after the part 591 of hook 59'is brought into position to enable it to be engaged with the lower side of the tooth c, followingthe depression of the foot key by the press attendant to lower the arm 58 and the cam part 581 thereon to permit thc hook 59 to swing downwardly into the hook engaging position. Operative engagement ofthe part .591 of the hook 59 with the tooth c can onlyoccur while the concentric portion a b of the cam groove (Z1 is passing by the cam roller '17, which is when the line L1 is passing from the line a1 to the position of the line' b1. That'is, the tripping may be eifected .only duringF the time the leadingedge of the printing form travels through the arc a1 51 and during the time the seo;-

ment a b of the cam slot d1 is passing by thc roller i (see Fig. 3). When the cam roller t tween the sidea of the arc a Z; and the shaft (Z2, the cam roller i'. is drawn toward the shaft d to the position shown at the left of Fig. 3 in connection with the second printing cylinderi The part 591 of the hook 59 (assuming that the attendant has pressed down the key A to drop the arm 58 to permit the hook 59 to engage the tooth c) pulls the tooth 0 in a clockwise direction to permit the corresponding printing cylinder to be lowered by its own weight. When t-he roller z' is in the portion of the cam groove (Z1 between the shaft (Z1 and the side Z) of the are a Z) the motion of the arm It' is reversed whereupon the extension Z111 of the arm I.: pushes upon4 the lunr @carried by the tooth c to turn the tooth 0 and the eccentrics Z1 fixed with respect thereto counter clockwise back to the normal position illustrated in connection with cylinder 17, Fig. 3. In coming back to this position the eccentrics Z1 raise the corresponding printing cylinder to working position. It is understood that the roller m (upon the hook 59) supports the hook while this roller m rides over the tripping cam portion 581 when the arm 58 that carries this cani 581 is in `the normal raised position illustrated and while the corresponding printing cylinder is in its normal operating position. The arm 58 may be lowered at any time but should this arm belowered while the roller's'y is not in the arenal portion a Z of the cam slot (Z1. the Swinging end of the hook will ride upon the crown of the tooth c (see Fig. 1) until the roller 'af is received in the arcual portion L Z) of the canigroove aZ1.

rEhe sheets to be printed upon are fed to the first impression cylinder 11 from the feed board not shown. The grippers 3L- upon the first impression cylinder 11 take `the sheet, numbered 60, from the feed board and carry it around through the line 34 joining the centers of the shafts. 10 and l5 (see Fig. 3) to the line 341 joining the centers of the shafts 10 and 18 when the first printing operation is initiated. the forni 35 upon the irstprinting' cylinder then having printing,r relation with the sheet G0 upon the cylinder 11.. sheet (i1 is shown preceding the sheet 6() being held b v the grippers 36 of the transfer cylinder 16 preparatory to transfer to the second impression cylinder 26. The first printing operation upon sheet ij() thus initiated continues during the first revolution of the'first impression cylinder 11 and of partv of the second revolution `thereof (beginiaiing with the time the ilupression cylinder .11 receives the sheet) until the form 35 upon the iirst printing cylinder completes its print-ingv upon the sheet 60.

,During the second revolution of the first impression cylinder 11 the grippers 36 upon sheet transfer cylinder 16 take the sheet 60 the roller 55 passes over the cutaway or active portion sa of the cam s (see 3).

The parts t1, i3 of the cam t desiraloly' pel'- form their functions through the intermediation of mechanism which is incusve of a cam lever t* pivoted at t5 and. carrying a cam roller t engageable by parts t1 t3 of the cam t when the cylinder 17 is in impression position, the entire cam t being withdrawn from operating relation to the roller t when the cylinder 17 is in its lowered or non-J printing position. When the cam roller t passes over the cam portion t3 the lever t* is lowered, by its own weight, against the stop t7. A flexible rod ts constitutes a continuation of the lever t4 and extends into the range of movement of the pin 89 carried upon the hook lever 81. When the high part of the cam t is brought into engagement with the cam roller t it t-urns the lever t4 in a clockwise direction to place the rod t there of in, the position indicated by ddtted lines in Fig. 2 in Wg i gaged hy the l wer end of the rod tito'hold the hook leve-r s1' in the position show by dotted lines in Fig. 2 wherelby the coupler, pin s3 cannot engage the yhook s? during the time that the cylinder- 17 is in impression position as shown in dotted lines -in Fig. 2

and While the cam roller Az' is passing through the position a of the cam groove d1. When i the low part t2 of the cam t underlies the roller t or when the printing cylinder 17 is in its lower or non-printing position in which the high part t1 of the cam cannot engage the cam roller t thelever t* and its extension t8 are in the position indicated hy full lines in Fig. 2 in n v1nich the lmver end of the rod #is is withdrawn from the range of movement of the pin 8 permitting the hook lever s1 to rotateby its own weight in 'a clockwise directionk and 'hears against the pin .at until the camA 8 presents its active `portion s to `the roller S5 (see left hand corner of Fig. 5), the roller 85 rbeing caused to'follow the cam portion 8B 'by the turning action of the spring 8T upon the lever s4. When the low part t2 of the cam t is beneath the cam roller t and also during the entire time the printing cylinder 17 is in nonprinting or lowered position themcam t has no infiuence upon the positionlng device wh ich controls hook lever 81 so that this hook lever is permitted to move in a clockwise direction of its own weight and is therefore free to couple the tripping mechanism of i the printing cylinder ofthe second printing couple with such cylinder. The high `part t of cam t is so disposed that it does not comeinto effective lrelation with the roller t until some time after the cylinder 17 has been raised into printing position; 'that is,A the'transmission of the movement of said cylinder 17 into printing position to the lever 8? is delayed until the tripping operaich position the pin s is enprinting couple is 'in its normal position, its 7d impression or printing position, it operates mechanism for preventing the coupler and the tripping mechanism of the printing cylv' inder of the second couple which is controlled hy the coupler, from functioning while the printing cylinder of the first couple is in printing operation. l desirahly employ `attendant controlled meansJ for preventing the tripping` mechanism of the printing cylinder 21 to lcome into operative association with this cylinder. The attendantl controlled 4means is 'desiraoly the lever structure tt' t8 itself, supplemented hy an operating handle t9. When this attendant controlled means is to perform the function for which it is provided the handle t9 is moved ina clockwise direction until the lever t* engages the stop t? whereupon the rod t8 is in the dotted position illustrated in Fig. 2 to move the hook lever 81 to the dotted position shown in this figure with the results hitherto specified. By means of this mechanism a sheet may he printed upon by the printing cylinder 21 of the second couple only, assuming that the printing cylinder 17 of the first couple has been tripped. If it is desired to have printing cylinder 17 of the first couple to print alone upon a sheet passing through the press,v rod u, which is connected to the lower end of'rod t8 and is provided with an operating handle uint its upper end, is pulled upwardly to deiect the rod tf* rom the position shown hy dotted lines in Fig. 2 to the position shown in full lines whereby this rod t8 is maintained out of the range of movement of the pin s to allow the hook lever s1 to turn in a.' clockwise direction due to its own weight to enable it to he engaged by the p'in si. .The rod u may 'be locked in the posi tion shown in full lines in Fig. 2 hy means of the hook u2 pivoted upon the handle u* and engageahle with the pin e3 fixed upon the frame of the press.

Vhen the cylinders 17 and 21 are to be tripped it is necessary, after the cylinder 17 is tripped, that sufficient time elapse hefore the cylinder i1 is tripped for the sheet .last printed by cylinder 17 -to pass from impression cylinder 11 and to he received. therefrom and to passy one and one-half times around the' sheet transfer cylinder 16 and thence to pass to impression cylinder 26.

cylinder 17 is in its lower position, Fig. 3, 130

and at this time the gri pers 59 of cylinder l1 are in the position sliown in Fig. 3 just before which the are a I of the canta groove Z1 has been passing *the roller 'L' and during which travel of' the cani port-ion L b byirthe roller the depressed foot key A will be effective to engage the hook 59 with the tooth c to trip the cylinder 17 by the operations hitherto described. W hen the printing form 35 is in the position illustrated in full lines in Fig. 2 the cam. s6 is on the point of mov-Y ing into positionin which the cam roller 85 will enter the cam portion 8s to allow the pin s3 to be positioned to permit the hook s2 to swing in position beneath it as will be seen in Fig. 5, the active Portion t* of the cam t then being out of operative relation with the roller te, which permits the rod to keep its position shown by full lines in Fig. :2. The rod ts. heilig in this position, the pin a is free of its influence and the pin s?, now being over the hook 82, will push the hook lever x1 downwardly, the pin a itself being pushed downwardly by the action ot' the cam s up-on the roller 85. As a. consequence of this operation the cam arm 58 is lowered to bring the cam 581 out. of range of 'the roller m whereupon the hook.

59 onV its return movement will drop into engagement with the tooth c to cause the cylinder 21 ot' the second printing couple to be tripped to its lowered position as indicated in Fig. 3, but this dropping of the hook 59 to engage tooth c only occurs after `the cam il has made onev complete revolution and the roller i passing through the are n', Z. By this time the cylinder 17 has made one revolution and has been raised to printing position but the high part lfl of the cam if has not at this time reached the roller 6 to more the rod t8 to disengage the hook s* from the pin s. lt will be seen that the ram nl of the first printing cylinder 17 has eauseii this cylinder to be automatically raised to a printing position in the same. revolution in which this cylinder was tripped. Should the key A be released at this 'time the hooki) will assume' its disengaged position so that the cylinder 17 will noti be tripped on the ensuing revolution. lVhen the cam roller i is engaged by the active part t1 of the cam t (which is when the cylinder 17 has been restored. to the printing position shown by dotted lines in Fig. 2, the corresponding raised position 1 f 'the cam I? being also indicated by dotted lines in this figure) and should the cam t be moved around as shown by the dot and dash lines` also shown in Fig. 2, by a further movement of the cylinder 17` the hook lever al is turned in a counter-cloclnvise direction against its own weight to break the couple s2. a". this result arcuri-ing when the cam roller .i5 is iu the bottom of the active part ss of the cam e". In this operation the action taking effect at the timer-the `printing cylinder 21 is automatically restored to its' printing or impression position during `the same revolution in which it was tripped.

In order that the press may be adapted for offset printing, onel of the printing cylinders, and preferably each of the printing cylinders, is provided with a form cylinder, there being form cylinder B for printing cylinder 17 and form cylinder B1 for rint' ing cylinder 21. The printing cylin er 17 is adapted to be brought into and out of printing relation with its complemental form c linder B and the impression cylinder '11.

he printing' cylinder 21 is adapted to be brought into and outI of printing relation with its complemental form cylinder B1 and the impression cylinder 26. As the press is shown equipped the printing cylinders 17 and 21 areeach provided with a form pl te B2 while the cylinders B Bl'are shown as ing u'nprovided with any form plates but the ap-. plicability of form plates to these cylinders B B1 is illustrated by the representation of form plates B3 `by dotted lines. lVhen the press is to be converted to an offset press the forms B2 are replaced 'by the usual rubber y Bthatpertains to the printingcylinders 17 and 21 is withdrawn to the dottedpositions shown inFig. 3 when the press is used as an offset press.

Suitable intermeshing gearing is employed.

. press isused as a type letter press).

Referring now. more particularly to Fig., 5, there is thereshown mechanism constructed and functioning similarly to mecha nism illustrated in remaining figures ot' the drawing. In this figure the `irnting cylinder 21 is partially illustrated and an addi.. tional printing cylinder (l (a member of a third printing couple) is also illustrated.

Lacasse are similar to described parts of the coupler and tripping mechanism pertaining to cylinder 2l being given similar characters of refzoimpression cylinder 26 with cylinder 21. The

"cylinder E has a relation to' cylinder D simin erence. Other parts are employed in conjunction With the cylinder C which aresimilar to parts employed in conjunction with cylinder 21 and are also given similar char-A` acters of reference. Suitable intermeshing gea-ring may be employed between the cylinder C and the cam mechanism of the tripping mechanism belonging to this cylinder for' turning the cams. ylinder D is -an impression cylinder having an association with cylinder C similar to the association of lar to that of cylinder 1,6 with cylinder 26.

` There are two additional transfer cylinders F and Gr operating in conjunction with transfer cylinder E to present the Wet-side of a printed sheet to the cylinder C for a third I have aforesaid link H1.

printin operation on such wet side. While ierein shown a. two color and `three color press arrangement by which the printing is all done on the same side of each sheet Iv do not `vvish to be limitedto this adaptation of my invention. Suitable intermeslr ing gearing is employed for operating the additional cylinders C, D, E, F and G in proper relation to the balance of the press equipment.

The cylinder 21 is equipped with cam mechanism and other parts that are similar to cam mechanism and other parts illustrated in connection with the cylinder 17, and similar parts are given -similar characters of reference.

The rod TS governs the coupler that is employed to link the printing cylinder of the third or final couple with its tripping mechanism. This rod performs the functions of both rods t8 and u as its lower end may besvv'ung toward and away from pins s3. The rod T8 is operable by a lever T4 pivoted at T5. Lever Ti is operated by hand lever H (operating through link H1) when the rod T8 is to be Withdrawn from the range of pin sato maintain the members of the coupler pertaining to the tripping mechanism of the third couple in cooperative relation. This rod TS is moved toward pin s? (when said coupler is to be rendered unctionless) by the cam t of the second couple (Fig. 5) through the intermediation of the cam roller T, lever T4, and the Lever T4 operates through Aits arm T that Works upon collar H2 xed upon link H1, the arm being vieldmovement of the lever H to the right, to render said lever S of the third tripping niech-' printing couple and the inking mechanism" of the second printing couple, a clear pasf sage way being atforded by the elevation o1' location of the mechanism H1, T, T8 outside of or overhead the space between said printing couple and the inking mechanism of the adjacent' couple.

it will be understood that thecam t of the second printing couple is 'similarly positioned with respect to the cam t of the'rst printing couple in order that the couple pertaining to the tripping mechanism of 'the third ornal printing couple may be properly timed. It i asbeen seen that .the cam 't of theirst printing couple and the mechanism itoperates constitutes a positioning means to enable the 'functioning of the couple of the tripping mechanism .of the turn ychristitutes a positioning means to enable the functioning of the couplerof the tripping mechanism of the third printing couple to cause the tripping of the printing cylinder oi: the third couple.

As illustrated, the sheet passing from the first printing couple to the second printing couple arrives at the second printing couple Within the time limits (as heretofore described) of a cycle of the timing of coupling cam s6 and tripping cam d of the second couple and which cycle is equal in time to a corresponding printing cycle to enable the tripping mechanlsm of the second couple to trip its cylinder through hook 59 and tooth c of the tripping mechanism. Similarly, the sheet passing from the second printing couple to the third printing couple Within the time limits of a cycle of the timing 0r coupling cam s@ and tripping cam d of the third couple and which cycle is equal in time to a corresponding printing cycle, to enable the tripping mechanism of the third couple to trip its cylinder through the hook 59 and tooth c of this tripping mechanism. lt', for example, the second printing cylinder were omitted and the sheet traveled over the cylinders 11, 16, 26, G, F, and E to the last printing couple D, C, the sheet would not arrive at the last printing cou le in the time A of a printing cycle as hereto ore described. The tripping mechanism and coupler and cam mechanism F T4 stationed at the second printing cylinder would therefore still be required to arrange for the arrival of the sheet at the last printing couple Within the tinieiimits otra cycle of the timing or coupling cam s and tripping cam d of the last :its

printing couple to enable the tripping mechanism of the last couple to trip its cylinder through the hook 59 and tooth c ot' this tripping mechanism, just the saine as though the second printing cylinder were present. l? rom the foregoing it will be observed that I have produced a multi-couple7 multi-revolution printing machine, the couples et' which are adapted to print on the same side of the sheet, in combination with two printing couples, the first couple having a cylinder normally in impression ,position hut movable out of impression position, interruptiiig means (trippingr mechanism) for i5 breaking the printing relation between the members of each couple normally inactive but adapted to aet sequentially, when properly positioned, and controllingr means for positioning said interrupting means in separate cycles of the machine.

Vhile I have herein shown and particularly described the preferred embodiment of my invention I do not wish to be limited to the precise details of construction shown as changes may readily be made without de parting from the spirit of my invention, but having thus described my invention I claim as new and desire to secure hy Letters Patent the following l. A printing press including two cylinders; tripping mechanism for each ot said cylinders; means for controlling the trippinpr mechanism ot' one of said cylinders; mechanism operated by the other cylinder,

while in impression position, for preventing said coi'itroiling means *from functioning to 'on said trippinga mechanism to trip;

and timing.' means included, in said last nieni il rhanisin whereby the operative et- 1 im'ivenient of said other cylinder Aosiiion is delayed until cafe ting* pr i'nfijludinp; two cylinders; tri'ipinp; mech.: iisin tor each of .said cylinders; a coupler for cfiipcratively relatone or' said cylinders with its trippingr echanisi'i'i g i'ncclianisin operated by the other iiadcr ""Yhile in iiiiprefon position. tor

eitinaj said coupler and the tripping' nanism it controls from. functioning; :Y: timingw means included in said last inened mechanism whereby the operative et'- ieot ot the movement of said other cylinder into iinpression position is delayed until after such movement ,'ninting press including two cylintripping' mechanism tor each ot said riders; a coupler for cooperatively relating one ci" said cylinders with its trippingr mechanism: mechanism operated by the other cylinder while in impression position, for preventingi.F said coupler and the tripping mechanism it controls from functioning; and timing1 means included in said last mentioned ined. nisin, said mechanism also including an operative connection between said means and said other cylinder adapted to actuate said timing` means and to move the saine bodily in unison with said other cylinder whereby the operative eii'ect of the movement of said other cylinder into impression position is delayed until after such movement.

et. A printing press including two cylinders; tripping mechanism for each of said cylinders: a coupler for cooperatively relating one of said cylinders with its tripping mechanism; mechanism. operated by the other cylinder while in impression positiom 'for preventing said coupler and the trippingr mechanism it controls from functioning; and a cam included in said last mentioned nicchanism, said mechanism also including an operative connection between said cam and said other cylinder adapted to rotate said cam and to move the same bodily in unison with said other cylinder, the timing ot said cam being suoli that the operative, effect of the movement of said other cylinder into '1mpression posit-ion is delayed until after such movement.

5. A printing press including two cylin ders; tripping mechanism for each of said cylinders; a coupler for cooperatively relating'one of said cylinders with its tripping mechanism mechanism operated by the other cylinder while in impression position. tor preventing said coupler` and the tripping;r mechanism it controls from functioning: and a cam included in said last mentioned mechanism, said mechanism also including an operative connection lxitwcen said cam and said other cylinder adapted to rotate said cam and to niove the same bodily in unison with said other cylinder` the n'iovcn'icnt of said other cylinder out of impression position renderingy said cam functionlcss.

6. A printing press including' two cylinders; tripping mechanism tor cach or" said cylinders; a coupler Vfor copcrativcly relating' one of said cylinders with its tripping mechanism mechanism operated hy 1h e other cylinder while in impression position for preventing' said coupler and thc tripping ineel'ianism it controls from functioning; and a cam included in said last mentioned mechanism; said mechanism also includingr an operative connection between said cam and said other cylinder adapted to rotate said cani and to move the saine bodily in unison with said other cylinder, the movement of said other cylinder out ot impression positionirendering said cam functionless. the tiniin ,tg-of said cam beinglr sach that the operative etlectI of' the movement of said other cylinder into impression position is delayed until ater such movement.

7.v A printing press including two cylinders;` tripping mechanism for each of said cylinders; a coupler for eoperatively relat- Lacasse ing one of said cylinders with its tripping cylinders; a coupler for cooperatively relata-- ing one of said cylinders with its tripping mechanism, the other cylinder being normally in impression position; mechanism operated by the latter cylinder, while in a printing cycle, for', preventing said coupler from functioning; and automatic mechanism for restoring to printing position the tripped cylinder having said coupler and operating .in the same revolution 1n which this cylinderl is tripped.

.9. A printing press including two cylinders; tripping mechanism for each of said cylinders; a coupler for cooperatively rclating one vot said cylinders with its tripping mechanism, the 'other cylinder being normally in impression position; mechanism operated by the latter cylinder,while in impression position, for preventing said couler and the tripping mechanism it controls rom functioning, the coupler functioning4 when this latter cylinder is in nonprinting position; and automatic. mechanism for restoring tol printing position the tripped cylinder having said coupler and operating in the same revolution in which this cylinder is tripped.

` 10. A printing -press including two cylinders; tripping mechanism for each of said cylinders; a coupler for cooperatively relating one of said cylinders with its tripping mechanism, the other cylinder being normally in impression position; mechanism operated by the latter cylinder, while in a printing cycle, for preventing said coupler from functioning, the coupler functioning when this latter cylinder is in non-printing position; and automatic mechanism for restoring to printing position the tripped cylinder having said coupler and operating in the same vrevolution in which this cylinder is tripped.

11. A printing press including two cylinders; tripping mechanism for each of said cylinders; a coupler forV coperatively rellatingone of said cylinders with its tripping mechanism, the other cylinder being normally in impression position; mechanism operated by the latter cylinder, while in ini-1 pression position, for preventing said coupler andthe tripping mechanism it controls from functioning and which mechanism .1s

printin-g cycle, for preventing said coupler from functioning and which mechanism is inclusive of a cam carried by and rotating with this latter cylinder; and automatic mechanism for restoring to printing position the tripped cylinder having said coupler and operating in the same revolution in which this cylinder is tripped.

13. A printing press including two cylinders; tripping mechanism for each of said cylinders; a coupler for coperatively relating one of said cylinders with its tripping mechanism, the other cylinder being normally in impression position; mechanism operated by the latter cylinder, while in impression position, for preventing said coupler and-the tripping mechanism it controls from functioning, and which mechanism is inclusive of a cam carried by and rotating with this latter cylinder, the coupler functioning when this latter cylinder is in nonprinting position; and automatic mechanism for restoring to printing position the tripped cylinder having said coupler and operating in the same revolution in which this cylinder is tripped.

14. A printing press including two cylinders; tripping mechanism for each of said cylinders; a coupler for cooperatively relating one of said cylinders with its tripping mechanism, the other cylinder being normally in impression position; mechanism operated by the latter cylinder, while in a print-ing cycle, for preventing said coupler from functioning and which mechanism is inclusive of a cam carried by and rotating with this `latter cylinder, the coupler func@ tioning when this latter cylinder is in nonprinting position; and automatic mechanism for restoring to printing position the tripped cylinder having said coupler and operating in the saine revolution in which this cylinder is tripped.

15. A printing press including two cylinders; tripping mechanism for each of said cylinders; a coupler for cooperatively relating one of said cylinders with its tripping mechanism, the other cylinder being normally in impression position; mechanism .operated by the latter cylinder, while in impression position, for preventing' said coupler and the tripping mechanism it controls trom functioning and which mechanism inclusive otl a cam operated by this latter cylinder: and automatic mechanism for restoring to printing position` the tripped cylimler having said coitiler and operating in the saine revolution in which this Cylinder is tripped.

lt. A printing;r press including two cylinders; tripping mechanism for each of said cylinders: a couple .t'or coope 'ativ'ely relating one ol said cylinders with its tripping mechanism. the other cylinder being normally in impression position; mechanism operated by the latter cylinder` while in a printing cycle', for preventing said coupler from 'functioning and which mechanism is inclusive ot' a cani operated by this latter cylinder:v and automatic mechanism for restoring to printing position the tripped cylinder having said coupler and ope 'at-ing in the ,same revolution in which this cylinder is tripped,

lf. i printing press including two cylinder-; tripping mechanism lor each of said cylinili-is: a. coupler lor coi'peratively relatingy one ot' .said cylinders with its tripping mechani-m. the other cylinder being normally n impression position; mechanism operated by the latter cylinder. while in impression position. l'or preventing said couplcr and the tripping mechanism it controls from functioning and which mechanism is inclusive oll a cam operated hy this latter cylinder. the coupler Vfunctioning when this latter cylinder is in non-printing position; and automatic mechanism l'orv restoring t0 printing position the tripped cylinder having ,-iaid coupler and operatin,"r in the same revelation in which thiscylinder is tripped.

le. ,lt printing press including tivo cylinders; tripping mechanism l'or each ot said cylinder-, a coupler l'or coiiperativelyY iclatin;r one nt" said cylinders` with its` tripping nicchan'sm. the other cylinder beingr noimally ii; impie-sion position: mechanism operated by the latter cylinder` while in a printing cycle. vi'or preventing said coiiplei' from tunctionin;r and which mechanism is inclusive ol` a cam operated hy thisl latter cylinder. the couplet' lonctioning when this latter cyliinler is in non-printing position; and automatic meclrinism toi restoring' to printing' iosition the tripped cylinder having said coupler and operating in the same revolution in which inis l'ylinder is tripped.

lil. A printing press` includingr two cylinders; tripping mechanism l'or each ol .said cylinders; mean.` l'oiI controlling the tripping mechanism ot' one'ot said cvlindets: mechanism operated ity the other cylinder, whilev in impression position. for preventing said controlling meansy troni functioning' to allow said tripping mechanism to trip: tn lans included in said last mentioned meansl whereby the operative etl'cct of the movenient of said other cylinder into impression position is delayed until after such moyeinent; and automatic mechanism for restoring` `to printingr position said one cylinder after it is tripped and ope ating in the .same revolution in which this cylinder is tripped.

2t). A printing press including two cylinders: tripping mechanism for each 0f said cylinders; a coupler for cope atively rclating one of said cylinders with'its tripping mechanism, mechanism ope ated hy thel other cylinder, while in impression position. for prevent-ing said coupler and the tripping mechanism it controls from functioning; means included in said last mentioned mechanism whereby the operative etfect otl the movement of said other cylinder into inipression position is delayed until after such movement; and automatic mechanism tot' restoring to printing position the. tripped cylinder having said coupler and operating in the same. revoltition in which this cylinder is tripped.

21. A, printingr press including one single revolution cylinder; a-second cylinder o`p erating second in printing; tripping mechanism for each of said cylinders: and automatic means operating in each reyolution ol' said single revolution cylinder whereby the tripping mechanism o'f the second cylinder is positioned in the printing cycle ahead ot the printing cycle in which the tripping mechanism of the first cylinder is positioned.

Q2. A printing press including one single revolution cylinder; a second cylinder operating Second in printing; tripping mech-- .anism foreach of said cylinders: and aut-.o-

matic means governed hy the first cylinder in itsl printing,r operation whereby the tripping niechaiiism of the second cylinder is positioned in the printii'ner cycle ahead of thc printing cycle in which the tripping mechanisin of the iirstcylint'ler is positioned.

23, A 'printing press including one single revolution cylinder; a second cylinder operating second in printing: tripping mechanisni t'or each of said cylinders; automatic means operating in each revolution of said single revolution cylinder whereby the tripping mechanism of the second cylinder is positioned in the printing cycle ahead ot' the printing cycle in which the tripping mech-- finism ol' the first cylinder is positiom-id: :ind

positioning means governing only this last tripping mechanism. .t-

ffl. A printing press including one single revolution cylinder: a second cylinder op crating seo id in printing: tripping mechanism tor each ot' said cvlint'lers. automatic means governed hy the first cylinder in its` printing operation whereby the tripping mechanism of the. second cylinder is positioned in the printing cycle., ahead of the printing cycle. in which thel tripping meehtt ti necesi-se anisin of the first cylinder is positioned; and

positioning means governing only this last tripping mechanism. i

25. A printing press including one single vrevolution cylinder; a second cylinder operating second in printing; tripping mechanism for each ot said cylinders; automatic means ,operating in each revolution of said single revolution cylinder whereby the tripping mechanism ot the second cylinder is positioned 1n the printing cycle ahead of the printing cycle in which the tripping mechanism of the first cylinder is positioned; and attendant controlled positioning means gov- 'erning only this last tripping mechanism.

26. A printing press including one single revolution cylinder; a second cylinder 0perating second in printing; tripping mechanism for each of said cylinders; automatic means governed by the irst cylinder. in'its printing operation whereby the tripping mechanism of the second cylinder is positioned in the printing cycle ahead of the printing cycle in which the tripping mechanism of the iirst cylinder is positioned; and attendant controlled n'ieans governing only this last tripping mechanism.

27. A printing press including one printing couple; a second printing couple operating second in printing, each of said couples having a cylinder, the cylinder of the second couple being a single revolution cylinder: tripping mechanism for each ot said couples; automatic means governed by the first cylinder in its printing operation and operating in each revolution oli said single revolution cylinder whereby the tripping mechanism of the second couple is positioned in the printing cycle ahead ot the printing cycle before that in which the tripping mechanism of the first couple is positioned; and positioning means governing only this last tripping mechanism.

28. A printing press including one printing couple; a second printing couple operating second in printing, cach ot' said couples having a cylinder, the cylinder of the second couple being a single revolution cylinder; tripping mechanism for nach ot' said couples; automatic means operating in each revolution' ot' said single revolution cylinder whereby the. tripping mechanism ot the second couple is positioned in the printing cycle ahead oi the printing cycle before that 'in which the tripping vmechanism ot' the first couple is positioned; and attendant controlled positioning means governing only this last tripping mechanism.

29. A printing press including one printing couple; a second printing couple operating second in printing, each of said couples having a cylinder, the cylinder ot' the second couple being a single revolution cylinder; tripping mechanism for each ot said couples; automatic means governed-by the first cylinder in its printing operation and operating in each revolution pt said single revolution cylinder whereby the tripping mechanism of the second -coaple is positioned in the printing cycle ahead of the printing cycle before that in which the tripping mechanism of the first couple is positioned; and attendant controlled means governing only this last tripping mechanism.

30. A printing press including a orin cylinder; a printing cylinder; an impression cylinder; mechanism. tor establishing print-` ing relation and breaking the same between the printing cylinder and the other cylinders; a. cylinder in another printing couple; tripping mechanism for this latter cylinder; a coupler for comratively relating said tripping mechanism with its cylinder; and mechanism operated by one of the other cylinders, while in impression position, to'prevent said coupler and the tripping mechanism it controls trom fnnct-ioninr.

3l. A printing` press including a form cylinder; a printing cylinder; an impression cylinder; mechanism toi-'establishing printing relation between the printing cylinder and the other cylinders; a cylindcrin another printing couple; tripping mechanism for this latter cylinder; a coupler i'or cooperatively Arelating said trippingr mechanism with its cylinder; mechanism operated by one of the other cylinders, while in impression position, to prevent said coupler and the tripping mechanism it controls from functioning; and means included in said last mentioned mechanism whereby the operative eii'ect ot' the movement of said other cylinders into impression position is delayed until after such movement.

3;.. A printing press including` a iiorin cylinder; a printing cylinder; an impression cylinder; mechanism t'or establishingprinting relation apd toi hicalting the saine between the print-ing cylinder and the other cylinders; a. cylinder in another printing couple; tripping mechanism for this latter cylinder; nians tor controlling said tripping nii-irliaiiisin; mechanism operated hy one oit said cylinders in said first mentioned group. while in printing relation with its coniil'ilemeiital cylinders. tor preventing said controlling means 'from iuiictioningto position said tripping mechanism to trip; and timing' means included in said last inen- -tioned mechanism whereby the operative effect ot' the movement oi" 'said one cylinder into printing relation with its compleinental cylinders is delayed until after such movement.

A printing press including a term cylinder; a printing cylinder; an impression cylinder; mechanism for establishing printing relation and breaking the saine between the printing cylinder and the other cylinders; a cylinder in another printing couple;

l:La

aniam it controls from functioning'.

tripping mechanism 'for this latter cyliinler: a, coupler for coiiperatiy'ely relating Said trippingr mechanism with ita cyliinlcr: antotoinatic means whereby thc tripping mechaniJ-:ni is positioned in the printingr cycle ahead of thix printingr cycle in which thin4 tripping mechaniam may be tripped; and mechanism operated by one ot' the other cylinders, while in impression position. to prevent Asaid coupler and the tripping mech- -T-l. A printing,r press inclnding a Yform cyliinler: a printingr cylinder: an impresaion cylinder; mechanism 'for establiahing printing relation between the printing' cylinder and the other cylindera: tripping mechanism for one of l@aid cylii'idera: a coupler for cooperatively relatingr the tripping ii'ieci'iai'iism with its cylinder; an additional cylinder; and mechanisn'i operated by the additional cylinder. while in a printing cycle to prevent said coupler and the tripping 'ineclninisna it controlsu from functioning.

35. A printingA prees inclinlingr a form cylinder; a printingr cylinder; an impres- `aion cylinder: tripping; mechanism Yfor one of ia'aid cylindera; a conplerjfor coperaiiely relating the tripping mechanism with AitsI cylinder; an additional c \'iiinler; mechanism for noving this latter cylinder into and ont ot' impression position: and meant-s operated by said additional cylinder 4or preventing said coupler from timctimiing r when this cylinder is in impression position.

56, A printintr prega` includingr a form cylinder; a printing c i'lindcr: an impression cylinder; tripping mechanism l'or one of #aid cylinders means i'or controllingsaid tripping inechaniem: an 'additional cylindcr: mechanism t'or moving! thin cylinder into and ont otE impreasion position; a conpier t'or coi'iperatiyelj.' relating' the tripping mechanism with its cylinder: an additional cylinder: mechanism operated by this.; cylinder Vtor preventing; `aaid coupler 'from t'nnci'ionine" when said additional cylinder ia in impression ponition: and timing means inclnded in laid la-:t iin-ntioncd ineclianiam whereby the operative eti'cct ol' the movenicnt ot' Said additional 'cylinder into iin-- preaaion i'iosition is delayed until a iter anch now-nnent.

3T. A. printingr press; including' a form cylinder; a printing cylinder; an impresion cylinder; tripping mechanism for one of L@aid cylinders: means for controlling Said tripping.Y mechanism; an additionzil cylinder: nieehanifnn for moving thiny cylinder into and ont of impression position; inecliani. 1n operated by this latter -ylinder 'while in impression position for preventing said controllimclr meam from functioning to position said trippingr mechanism to trip; and tiniing in amr; included in said last nientioned mechanirnn whereby the operative eii'ect of the movement: of said additional cylinder into impression position is delayed nntil after auch movementn 3S. In a multi-couple press, the combination with adjacent printingT couples); of an offset form cylinder for one couple, and located between the couples; inking mechanism for said offset form cylinder and' located between the couples; inkiner mechanism tor one ot' the couples and located between the couples, a passageway intervening between said iiiking mechanism for one conple. and the other couple for an attendant; interrupting n'ieann` for breaking the printingf relation between the men'ibernl ot' said couples; andiinnsitioning nxeehanism inter- `:eningr laetweeirpne printing couple and the interrupting.;ftneana of the next printing couple and solcated as not to obstruct Said pabsageway.

3f). In a i'nnlti-conple press, Vthe combination, `with adjacent printing couples; of" an olact t'orm cylinder for one conpio and l0- cated between the couples: inking mecha-- nism t'or said offset form cylinder and 1ocatcd between the couples: inlting mechanism for one of the couples and located between the couples, a paaaagei'ay intervening between said inlingg ineclninism for one conple and the other couple for an attendant; intel-ruining means for breaking the printing! relation between the infanbers ot smid conples: and positioning:r niecl'ianism intervenline between one printing couple and the inn-rrnlii'ingf means4 of the next i'rinting conple and located over said paasageway.

ln witncz-'a whereof l hereunto subscribe my naine thin sixth day of March, D. lli'.

ROBERT MIEHLP".

titl 

